| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cooling device of a circuit module that fully secures the cooling performance of a circuit element, at the same time, compactly forms a cooling member including a fan unit, and can reduce the occupation area of the cooling member for a circuit board. SOLUTION: A circuit module 19 has a circuit board 20 with a reverse side 20a and a surface 20b, a TCP(tape carrier package) 25 that is packaged to the reverse side of the circuit board, a heat reception part 37 for escaping the heat of the TCP in the direction of the surface of the circuit board, a cold plate 35 that is arranged on the surface of the circuit board and receives the heat of the TCP via the heat reception part, and a fan unit 55 with a rotor 57 and a fan case 58 for accommodating the rotor. The fan case 58 is in contact with a cold plate 35 in a posture for arranging the rotary shaft of the rotor along the thickness direction of the circuit board and has a channel path 64 where a cool wind is circulated when the rotor 57 rotates.</p> |
